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Full text of "Alaskan glacier studies of the National Geographic Society in the Yakutat Bay, Prince William Sound and lower Copper River regions"

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114                                 ALASKAN GLACIER STUDIES
TABULAR STATEMENT OF OSCILLATIONS OP HUBBABD GLACIER
Year	Nature of Change		Based on observations by
1890-1891		Slight advance of west part	Russell
1891-1895			Canadian Boundary Survey
1896-1897	Slight retreat		Bryant
1897-1899			Gilbert
1899-1901	Retreat west part 700-1000 ft	Advance west part several hundred yards; retreat east-part several hundred yards	U. S. Fish Commission
1901-1905			Tarr and Martin /
1905-1906	Continued advance west part; very little change east part		Tarr
1906-1909	Continued advance of west part; slight advance and crevassing of east part		Tarr and Martin
1909-1910	Continued advance of west part 660 feet; some retreat and some advance in east part, but slight increase in crevassing.		Martin
1910-1918	Recession   of   western  and   southeastern margins		Martin